like: vergeblich → →
vergeblich ☊ 
vô ích ☊ 
☊ vergeblich ☊ 无济于事的 ☊ wú jì yú shì de She tried in vain to point out to him the unfairness of his actions. ☊ point out (to sb), point sth out (to sb) ☊
search (for sth/sb): She searched in vain for her passport. ☊ search ☊
seek for sth/sb: They sought in vain for somewhere to shelter. ☊ seek ☊